DE19647389A1 - Tube heater, especially for heating plastic spray nozzles - Google Patents
Tube heater, especially for heating plastic spray nozzlesInfo
- Publication number
- DE19647389A1 DE19647389A1 DE1996147389 DE19647389A DE19647389A1 DE 19647389 A1 DE19647389 A1 DE 19647389A1 DE 1996147389 DE1996147389 DE 1996147389 DE 19647389 A DE19647389 A DE 19647389A DE 19647389 A1 DE19647389 A1 DE 19647389A1
- Authority
- DE
- Germany
- Prior art keywords
- tubular heater
- spray nozzles
- plastic spray
- heater according
- heating plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007921 spray Substances 0.000 title claims abstract description 6
- 238000010438 heat treatment Methods 0.000 title claims abstract description 5
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
Description
Die Erfindung betrifft einen Rohrheizkörper, insbesondere zum Beheizen von Kunststoffspritzdüsen.The invention relates to a tubular heater, in particular for Heating of plastic spray nozzles.
Zur Beheizung von Kunststoffspritzdüsen werden allgemein Rohr heizkörper verwendet. Optimaler Wärmeübergang und gleichmäßiges Temperaturprofil erfordern einen einwandfreien Sitz auf der Düse, und damit einen sehr engen Sitz. Dies bewirkt in der Praxis, daß ein auszutauschendes Heizelement auf der Düse fest gebacken ist und nur mit großem Kraftaufwand gelöst werden kann. Bei großen Formen sind zahlreiche Düsen eng beieinander ange ordnet und nur axial zugänglich. Weitergehende Zugriffsmöglich keiten erfordern das Zerlegen der Form. Kunststofformen sind sehr teuer und produzieren in sehr kurzen Taktzeiten, weswegen Stillstandszeiten möglichst vermieden oder verkürzt werden sollen.Pipe are generally used to heat plastic spray nozzles radiator used. Optimal heat transfer and even Temperature profile require a perfect fit on the Nozzle, and thus a very tight fit. This causes in the Practice that a heating element to be replaced is stuck on the nozzle is baked and can only be solved with great effort. In the case of large shapes, numerous nozzles are close together arranges and only accessible axially. Further access possible speed requires disassembling the shape. Plastic molds are very expensive and produce in very short cycle times, which is why Downtimes can be avoided or shortened if possible should.
Es ist daher Aufgabe der Erfindung eine schnell einsetzbare, in engen Raumverhältnissen anwendbare, leicht bedienbare und günstig zu fertigende Demontageeinrichtung, bzw. Demontage möglichkeit zu gestalten, die auf wenig Raum große Kräfte ein leiten kann.It is therefore an object of the invention to provide a fast, usable and easy to use in tight spaces Disassembly device or disassembly which is inexpensive to manufacture Possibility to design the large forces in a small space can lead.
Die Lösung dieser Aufgabe erfolgt gemäß den Merkmalen des Anspruchs 1. Demgemäß werden am Rohrheizkörper Kupplungselemente vorgesehen, an denen ein Abziehwerkzeug angreifen kann damit eine Zugkraft gegen die Düse eingeleitet werden kann, wodurch der Rohrheizkörper gelöst werden kann.This problem is solved according to the characteristics of Claim 1. Accordingly, coupling elements are on the tubular heater provided on which a puller can attack so that a tensile force can be introduced against the nozzle, whereby the tubular heater can be detached.
Am schnellsten einkuppeln und auf axial kürzestem Raum die größte Kraft einleiten kann dabei die Bauform in Art einer Bajonettkupplung. Rillen, Hinterdrehungen oder entsprechende vorstehende Partien können mit spann- oder spreizzangenartigen Werkzeugelementen eingekuppelt werden. Auch ein Gewinde ist bei ausreichendem Platz als Kupplungselement möglich. Weiter hin lassen sich über nur einen Teil des Umfangs vorhandene Aussparungen oder vorstehende Teile die entsprechenden Kräfte einleiten. The quickest to engage and the axially shortest space The design in the manner of a Bayonet coupling. Grooves, back turns or equivalent protruding parts can be with collet-type or expanding collet-type Tool elements are engaged. There is also a thread possible with sufficient space as a coupling element. Next can only exist over a part of the scope Recesses or protruding parts the corresponding forces initiate.
Hauptvorteil ist die spezifisch günstige kleinbauende Form der Krafteinleitung und die Möglichkeit auf kleinem Raum eine große Abziehkraft zu erzeugen.The main advantage is the specifically favorable, small-sized form the force transmission and the possibility in a small space to generate great pulling force.
Die Zeichnungen zeigen schematisch verschiedene Bauformen möglicher Kupplungselemente. Es sind jeweils die Versionen am Außendurchmesser des Rohrheizkörpers dargestellt.The drawings schematically show different designs possible coupling elements. They are the versions shown on the outside diameter of the tubular heater.
Fig. 1 zeigt eine Bajonettkupplung. Fig. 1 shows a bayonet coupling.
Fig. 2 zeigt einen vorstehenden Bund zum Umgreifen mit z. B. einer Spannzange. Fig. 2 shows a protruding collar for reaching around with z. B. a collet.
Fig. 3 zeigt eine Rille, in der z. B. eine Spannzange form schlüssig ansetzen kann. Fig. 3 shows a groove in which, for. B. a collet can form fit.
Fig. 4 zeigt ein Gewinde, auf das das Gegenstück des z. B. Ab ziehwerkzeuges aufgeschraubt werden kann. Fig. 4 shows a thread on which the counterpart of the z. B. From pulling tool can be screwed on.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996147389 DE19647389A1 (en) | 1996-11-15 | 1996-11-15 | Tube heater, especially for heating plastic spray nozzles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996147389 DE19647389A1 (en) | 1996-11-15 | 1996-11-15 | Tube heater, especially for heating plastic spray nozzles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19647389A1 true DE19647389A1 (en) | 1998-05-20 |
Family
ID=7811837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1996147389 Withdrawn DE19647389A1 (en) | 1996-11-15 | 1996-11-15 | Tube heater, especially for heating plastic spray nozzles |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19647389A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1623810A1 (en) * | 2004-08-05 | 2006-02-08 | Otto Männer Heisskanalsysteme GmbH & Co. KG | Hot runner nozzle |
-
1996
- 1996-11-15 DE DE1996147389 patent/DE19647389A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1623810A1 (en) * | 2004-08-05 | 2006-02-08 | Otto Männer Heisskanalsysteme GmbH & Co. KG | Hot runner nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |